Battery Crash Protection Frame With Modular Rod-Connected Secondary Frames

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Solution Overview

Problem

Heavy-duty vehicles with large traction batteries face challenges in providing effective protection against external damage while maintaining a simple assembly process and reducing the number of components to minimize cost and weight.

Innovation Solution

A battery crash protection arrangement comprising a crash protection frame with interconnected frame portions and rods, utilizing connector elements to connect secondary frames, ensuring protection against impacts and facilitating assembly with a reduced component count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a large number of components and attachment elements are used in the crash protection arrangement, then the protection reliability is improved, but the weight and cost increase

Engineering Contradiction:
Improveprotection reliabilityVSAvoidweight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The crash protection arrangement is divided into modular components: a first crash protection frame with a first secondary frame, and a second crash protection frame with a second secondary frame. Each frame can be independently assembled and connected via rod connector elements, allowing the system to achieve high reliability through modular redundancy without requiring a single heavy monolithic structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The secondary frames are nested within or integrated with the primary crash protection frames. The rod connector elements protrude from the primary frame to connect the secondary frames, creating a nested hierarchical structure that provides enhanced protection while minimizing the number of separate components and attachment elements.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If a large number of components and attachment elements are used in the crash protection arrangement, then the protection reliability is improved, but the assembly complexity increases

Engineering Contradiction:
Improveprotection reliabilityVSAvoidassembly complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The arrangement is segmented into two main assemblies (first and second crash protection frames with their respective secondary frames) that can be manufactured and pre-assembled separately. This segmentation reduces assembly complexity at the final installation stage while maintaining high reliability through the redundant modular structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nested hierarchical structure with secondary frames integrated into primary frames reduces the number of separate connection points needed. The rod connector elements serve multiple functions by connecting both the primary and secondary frames simultaneously, thereby reducing overall assembly complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Reliability

If a large number of components and attachment elements are used in the crash protection arrangement, then the protection reliability is improved, but the manufacturing cost increases

Engineering Contradiction:
Improveprotection reliabilityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

By segmenting the crash protection arrangement into modular first and second frames with their respective secondary frames, each module can be manufactured using standardized processes and then assembled. This reduces manufacturing cost compared to producing a single complex monolithic structure, while maintaining high reliability through the redundant modular architecture.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nested structure allows secondary frames to be integrated with primary frames using shared rod connector elements, reducing the total number of components that need to be manufactured and assembled. This integration lowers manufacturing costs while preserving the reliability benefits of the multi-frame structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

4Object-affected harmful factors

If the crash protection arrangement provides sufficient protection against external damage, then the safety is improved, but the weight increases

Engineering Contradiction:
Improveprotection against external damageVSAvoidweight
Core Design Contradiction:
Object-affected harmful factorsVSWeight of moving object

Solution Approach 1:

The protection system is segmented into multiple lightweight frame structures (first and second crash protection frames with secondary frames) that work together to provide comprehensive protection. This segmented approach distributes the protective function across multiple lighter components rather than requiring a single heavy barrier.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The nested hierarchical arrangement of secondary frames within primary frames creates a multi-layered protection system that effectively dissipates impact forces across multiple levels. This nested structure provides superior protection against external damage compared to a single-layer design, while keeping individual component weights low.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS20250206151A1Battery crash protection arrangement
Publication Date: 2025.06.26 VOLVO TRUCK CORP
  • US20250206151A1 patent drawing
  • US20250206151A1 patent drawing
  • US20250206151A1 patent drawing

AI summary

A battery crash protection arrangement for a traction battery of a vehicle, the battery crash protection arrangement comprising a first rod connector element comprising a first portion rotationally connected to a first rod, and a second portion, arranged on an opposite side compared to the first portion, the second portion being configured to connect to a first secondary rod, and a second rod connector element comprising a first portion rotationally connected to a second rod, and a second portion, arranged on an opposite side compared to the first portion, the second portion being configured to connect to a second secondary rod, wherein the first rod connector element protrudes out from a first aperture of a crash protection frame, and the second rod connector element protrudes out from a second aperture of the crash protection frame.